Buster Manufacturing makes two models of Granny$-$Shifting Knobs.

The Eclipse $2$G GS and the Supra Mark IV$.$

Each knob is comprised of Component X and Component Y$.$

The Eclipse $2$G GS uses $9$ units of Component X and $3$ Units of Component Y$,$ while the Supra Mark IV uses $7$ units of Component X and $7$ units of Component Y$.$ There is a total amount of $4,000$ units of Component X available and $3,500$ Units of Component Y available.

The Eclipse $2$G GS generates a profit of $$124$ per unit and the Supra Mark IV generates a profit of $$136$ per unit.